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Research: Feasibility test and field application of biofoam spray to directly reduce ammonia emissions from a swine manure slurry pit

Bad-odor gases (malodors) generated from various types of confinement animal operational facilities (e.g., for swine, beef, poultry, dairy) are problematic because, for example, nearby residents report them as a nuisance. Usually, malodor emissions are associated with improper storage and handling of the generated animal manure and slurry, negatively affecting humans and the environment [10], [21], [37]. Globally, owing to the increasing demand for meat, swine farming is increasing annually. South Korea produced 1.11 million metric tons in 2022, and projections indicate that the number will increase annually [35]. The disposal of manure and its odors associated with storage facilities are the primary problems experienced during swine production and expansion. Notably, large-scale swine production is performed inside a completely roofed confinement system on a slatted floor with a slurry pit underneath for manure management and odor reduction [33], and raising swine above slurry pits is the most convenient approach for the storage and handling of feces, urine, and the remaining fodder, with the wastewater used for the elimination of feces. | READ MORE